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From: Rajesh Kumar <[email protected]>
To: Ron Johnson <[email protected]>
Cc: Pgsql-admin <[email protected]>
Subject: Re: Oracle to postgres migration
Date: Mon, 27 Jan 2025 15:41:59 +0530
Message-ID: <CAJk5Atb417VyDWX=Ag=RiZxTS2WGjRoWKfzn+iHpHJD7UD=20g@mail.gmail.com> (raw)
In-Reply-To: <CANzqJaBAGHKG_Vc38BbLau_UGcvGomm-rFahpAJ814vV3V4fog@mail.gmail.com>
References: <CAJk5AtavL_Q9AbcBw3J3oDmY+ggUC+Mgz-9RqOv0vHH1O9FQbA@mail.gmail.com>
	<Z5dQV9IVZcLjKN3b@jrouhaud>
	<CAJk5Atbqq8j8zjRUMcwCpSmqMPZP143tf0tK-bPDVJ5Uwr8V3A@mail.gmail.com>
	<CANzqJaBAGHKG_Vc38BbLau_UGcvGomm-rFahpAJ814vV3V4fog@mail.gmail.com>

Thank you all. As mush as more info is always appreciated by dearest admins

On Mon, 27 Jan 2025, 15:40 Ron Johnson, <[email protected]> wrote:

> I migrated a 12TB Oracle db that was mostly LOB objects into an 8TB PG
> database.  LOBs loaded into bytea columns.
> One thing which I did not do, but should have, was have ora2pg convert
> NUMBER(38,0) values to BIGINT.
>
> We just used ora2pg to convert data; the app developer rewrote all of the
> stored procedures, functions, triggers, etc.
>
> On Mon, Jan 27, 2025 at 4:31 AM Rajesh Kumar <[email protected]>
> wrote:
>
>> Size is 300gb, have lob objects. I prefer ora2pg. Does EDB MTK costs?
>>
>> Mostly I need to know what are all the things I need to ask oracle people
>> to start withj
>>
>> On Mon, 27 Jan 2025, 14:52 Julien Rouhaud, <[email protected]> wrote:
>>
>>> Hi,
>>>
>>> On Mon, Jan 27, 2025 at 02:42:22PM +0530, Rajesh Kumar wrote:
>>> > Hi team,
>>> >
>>> > I am trying to migrate from oracle to postgres.
>>> >
>>> > I have been asked to provide an estimation for effort days. Anybody
>>> has any
>>> > document related to estimation? And steps.
>>> >
>>> > Where do I start with? Anybody has any documentation related to ora2pg
>>> > migration ?
>>>
>>> ora2pg is probably the best tool for your task.  And yes it does provide
>>> estimates for the migration efforts, see
>>> https://ora2pg.darold.net/documentation.html#Migration-cost-assessment.
>>>
>>> In general the ora2pg documentation is really good, you should find the
>>> answer
>>> to all your questions there.
>>>
>>
>
> --
> Death to <Redacted>, and butter sauce.
> Don't boil me, I'm still alive.
> <Redacted> lobster!
>


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